Custom Mirror Installation Guide — Los Angeles Glass Company
LOS ANGELES
ORANGE COUNTY
SAN FERNANDO VALLEY
Professional custom mirror installation in Los Angeles typically costs $300 to $3,500 depending on mirror size, glass thickness, edge treatment, and mounting complexity — with most standard wall mirrors falling between $400 and $900 for fabrication and installation. Unlike off-the-shelf mirrors that come in fixed sizes, custom mirrors are fabricated to your exact dimensions and specifications, then installed by glaziers who understand weight distribution, wall anchoring, and seismic safety — critical considerations in earthquake-prone Southern California.
Types of Custom Mirrors We Install
LA Glass has installed thousands of custom mirrors across Los Angeles, Orange County, and the San Fernando Valley since 2008. These are the mirror types we handle every day:
Wall Mirrors
Frameless or framed, flat against the wall or floating on standoffs. Wall mirrors range from small accent pieces (18” x 24”) to full accent walls that span 12 feet or more. We work with flat polish edges for modern interiors, beveled edges for traditional homes, and custom shapes for statement installations.
Bathroom Mirrors
Custom-sized to fit your vanity perfectly, with edge treatments that complement your bathroom’s design language. We account for vanity lighting, medicine cabinet cutouts, and the humidity environment of a bathroom. Every bathroom mirror is installed level to the vanity — not necessarily level to the floor, because floors in older LA homes are rarely perfectly level.
Home Gym Mirrors
Full-wall gym mirror installations — floor-to-ceiling and wall-to-wall. These are typically 1/4” glass with flat polish edges, mounted in J-channel for perfect panel-to-panel alignment. Gym mirrors in a typical LA home gym (one wall, 8’ x 12’) use four to six 48” or 60” wide panels. We install them with zero visible gaps between panels for a seamless mirrored wall.
Sliding Door and Wardrobe Mirrors
Mirror panels for sliding closet doors require precise measuring and specific track-compatible hardware. We fabricate tempered mirror glass to fit your existing track system or supply the complete door and track package.
Table Top and Furniture Mirrors
Mirrored table tops, mirrored furniture panels, and decorative mirror inserts. These require specific edge treatments and safety considerations — all furniture mirrors are tempered for safety.
How We Measure for a Custom Mirror
Accurate measurement is the single most important step in custom mirror installation. A mirror that is 1/4” too wide does not fit. Here is our process:
Step 1: Wall Assessment We check that the wall is flat and plumb. Drywall that bows in the middle creates an uneven mounting surface. For flat-mount (glued) mirrors, the wall must be flat within 1/8” over the mirror’s dimensions. If the wall has significant bowing, we recommend a mounted (clip or channel) installation that can accommodate minor variations.
Step 2: Stud Location Any mechanical mounting — clips, J-channel, French cleats — must anchor into wall studs. We locate and mark every stud in the mounting area. For installations where stud spacing does not align with the mirror’s mounting hardware requirements, we plan for plywood backer board behind the drywall (for new construction) or heavy-duty drywall anchors as a secondary option (for retrofit).
Step 3: Dimension Capture We measure the exact width and height, checking in multiple spots — walls are rarely perfectly square, and dimensions can vary by 1/8” to 1/4” from one end to the other. The mirror is fabricated to the smallest measurement to guarantee a fit.
Step 4: Obstruction Mapping Light switches, outlets, wall sconces, air vents, thermostat housings, and window or door trim are all mapped and accounted for. If a mirror needs cutouts for electrical boxes or other obstructions, these are precisely located and communicated to fabrication.
Mirror Mounting Methods
Mirror Adhesive (Mastic) For mirrors up to 60” in any dimension, mirror mastic provides a clean, hardware-free installation. The mirror sits nearly flush to the wall — typically 1/16” to 1/8” off the surface. Adhesive installation works best on: – Smooth, painted drywall – Plaster walls – Smooth tile surfaces
Adhesive mounting is permanent. The mirror cannot be removed without destroying the drywall behind it.
J-Channel System Metal U-channel mounted to the wall creates a frame that the mirror panels sit inside. The bottom channel carries the weight; top and side channels hold the panels in place. J-channel is the standard for: – Gym mirrors (multiple panels aligned edge-to-edge) – Floor-to-ceiling mirror installations – Any installation where individual panels may need future replacement
Mirror Clips Small clips screwed into wall studs grip the mirror edge. Clips are visible but allow for mirror removal without wall damage. We use clips when: – The mirror may need to be removed in the future (rental properties, temporary installations) – The wall surface is not suitable for adhesive (wallpaper, textured surfaces) – The project requires an adjustable mounting system
French Cleat System For mirrors exceeding 100 pounds, a French cleat provides the most secure mounting. A metal cleat anchored to wall studs accepts a matching cleat on the mirror back. This is the standard for: – Mirrors over 72” in any dimension – Glass 3/8” thick or heavier – Commercial installations – Any mirror mounted in a high-traffic area where it could be bumped
Standoff Mounts Metal standoffs hold the mirror 1” to 2” off the wall surface for a floating effect. Standoffs require precise drilling — every hole in the mirror must align perfectly with its wall anchor. This is the most technically demanding mounting method and should only be done by experienced installers.
Ready to plan your mirror project? Start with our residential glass guide for the complete range of home glass services.
Why LA Glass for Custom Mirror Installation
I am a third-generation glass glazier. My family has been working with glass since before I was born. I served in the US Air Force and came home to build a company on the values I learned in the military: discipline, precision, and a servant’s attitude.
LA Glass has installed custom mirrors in Beverly Hills penthouses, Newport Beach oceanfront homes, Calabasas estates, and home gyms from Sherman Oaks to Long Beach. We treat every mirror — from a small bathroom vanity to a full gym wall — with the same methodical approach. Because when you look in that mirror every day, it should be perfect.
REQUEST QUOTE NOW! — (323) 366-4202. Serving Los Angeles, Orange County, and the San Fernando Valley since 2008. Veteran owned. SBA registered small business.
Looking for details on mirror glass thickness, beveled edges, and mounting options? See our complete custom mirrors guide.
FAQ: Los Angeles Glass Company
A: Most wall surfaces can accept a custom mirror, but the mounting method varies. Smooth drywall and plaster work with adhesive. Tile requires mechanical fasteners (clips or J-channel) because mastic does not bond reliably to glazed tile surfaces. Textured walls, wallpaper, and uneven plaster require mechanical mounting with some wall preparation. A professional assessment determines the best approach for your specific wall.
A: The installation itself typically takes 1 to 3 hours for a standard wall mirror, and 4 to 8 hours for a full gym mirror wall. Lead time for fabrication is typically 5 to 10 business days for standard mirrors and 10 to 15 business days for beveled edges or custom shapes. We coordinate fabrication and installation so the mirror arrives on installation day.
A: Yes — we use tempered glass for mirrors in children’s rooms, playrooms, and any location below 36” where a child could impact the glass. For large wall mirrors in family living spaces, we recommend tempered glass and positive mechanical mounting (clips or J-channel rather than adhesive alone). Safety backing film can be added to any mirror for fragment retention.
A: Yes. Cutouts for electrical boxes, sconces, medicine cabinets, and other wall features are standard. These require precise measurement and CNC cutting during fabrication. Cutouts add to the fabrication cost but are routine for custom mirror projects.
A: Clean with a microfiber cloth and ammonia-free glass cleaner or a 50/50 vinegar-water solution. Never spray cleaner directly on the mirror edge — overspray can seep into the silver backing and cause edge corrosion. Avoid abrasive cleaners and paper towels (which leave lint and minor scratches). With proper care, a professionally installed custom mirror will look pristine for decades.
